PNY PSD512RF 512MB SD Secure Digital Flash Memory Card 100% compatible with all devices designed to use Secure Digital cards as standard or extended data storage Designed to comply with current and future SDMI (Secure Digital Music Initiative) portable device requirements Each card contains a write protect slide switch that provides protection against accidental overwriting or deletion of stored data For PDA's, MP3's, Digital cameras and other portable devices PNY's Lifetime Warranty protects the Secure Digital Card throughout the life of the product Toll Free technical support number is provided